Carburetor For Polaris Sportsman 500 HO and Scrambler 500 - Reliable

In this review the focus is on a direct-replacement carburetor designed for Polaris Sportsman 500 HO models and several 500cc Polaris ATVs. The bottom line: this carburetor is for owners who need a dependable, reasonably priced replacement that restores consistent fuel delivery and engine idle. It suits riders who want an easy-to-install part that addresses poor starting, rough idle or inconsistent throttle response without extensive modification. The review highlights real fitment details, measured dimensions and the part numbers covered so buyers can confirm compatibility before purchase.

Key Features

• Direct replacement fit: Covers many OEM part numbers so it fits numerous Sportsman, Scrambler, Worker and ATP 500 models without major modification.
• Measured intake sizes: The intake side inner diameter of 40mm and outer diameter of 44mm give a clear match for intake boots and manifolds.
• Air filter interface: With an air filter mount inner diameter of 53mm and outer diameter of 57mm, it aligns with common filter housings used on these Polaris models.
• Fuel flow control: Designed to regulate fuel delivery and adjust engine speed, helping restore smooth throttle response and consistent idle.
• All-season adaptability: Built to adapt to different environmental conditions so cold starts and hotter running conditions remain manageable.

Who It's For

This carburetor is best for owners of Polaris Sportsman 500 4x4 HO (2001-2006, 2008-2013 HO only), Sportsman Touring 500 HO (2010-2013), Sportsman Forest 500 (2011-2013), Scrambler 500 4x4 (1998-2012), Polaris Worker 500 (2001) and ATP 500 (2004-2005) who need a direct-fit replacement. It is particularly useful for hobby riders, woodsmen and fleet owners who need reliable day-to-day performance and easier installation.

Riders who should look elsewhere include those needing a performance-tuned or race carburetor, or anyone whose machine requires a model-specific calibration beyond the listed part numbers. Also check compatibility carefully if your model is a non-HO variant outside the listed years.

Pros & Cons

Pros

• Good value: customers report it offers solid performance at a reasonable price and restores reliable function.
• Ease of installation: many users find the carburetor relatively straightforward to fit with basic hand tools.
• Quality construction: buyers praise the build quality and consistent operation after installation.

Cons

• Not for tuned engines: this is a replacement unit, not a performance upgrade, so users seeking more power should consider other options.
• Compatibility caution: fits HO models and specific years listed only, so confirm part numbers before purchase.

Specifications

Applicable Models	Sportsman 500 HO, Scrambler 500 4x4, Worker 500, ATP 500
Compatible Years	Sportsman 2001-2006, 2008-2013 (HO only); Scrambler 1998-2012; Worker 2001; ATP 2004-2005
Part Numbers Covered	3131742, 3131712, 3131567, 3131453, 3131707, 3131740, 3131599, 3131289, 3131568, 3131557, 3130903, 3130945
Intake Side Inner Diameter	40mm (1.57in)
Intake Side Outer Diameter	44mm (1.7in)
Air Filter Mount Inner Diameter	53mm (2.08in)
Air Filter Mount Outer Diameter	57mm (2.24in)

Our Verdict

This carburetor is a practical, value-focused replacement for owners of the listed Polaris 500 models who need to restore reliable fuel delivery and idle behavior. It fits common intake and filter mounts, is praised for ease of installation, and covers numerous OEM part numbers, making it a sensible choice for routine repairs rather than performance upgrades.

Frequently Asked Questions

Will this carburetor fit my Sportsman 500?
Check the year and HO designation against the listed models; it fits Sportsman 500 HO models for the years noted and the other specified Polaris models.

Does it require jetting or tuning after installation?
Most users report it works well out of the box for stock engines; custom tuning is only necessary for modified or performance engines.

Are the intake sizes compatible with standard filters?
Yes, the air filter mount inner diameter of 53mm and outer diameter of 57mm match common filter housings used on these Polaris models.